William baxter



(N 0 Model.)

W.v BAXTER. REOIPROGAYTING HYDRO-TRANSMITTER.

No. 292,779. Patented Feb. 5, 1 84.

UNITED STAT S PATENT @frricia \VILLIAM BAXTER, OF JERSEY CITY, NEXV JERSEY, ASSIGNOR TOTHE HYDRODYNAMIC TRANSMITTER COMPANY, OF NEW YORK, N. Y.

RECIIPROCATING HYDRO-TRANSMITTER.

SPECIFICATION forming part of Letters Patent No. 292,779, dated February 5, 1884.

To all whom it may concern:

Be it known thatl, WILLIAM BAXTER, a

citizen of the United States, residing in Jersey the following specification and the accompasupplying a reciprocating piston.

nying drawing, forming a part of the same.

This invention consists in an improvement in or modification of the invention patented -to me December 19, 1882, as No. 269,167; and

it consists in the combination, with a suitable reciprocating pumping-engine and reciprocating water-motor propelled by water from such engine, of an overflow-tank connected with the said supply-pump and water-motor, to compensate for the'various irregularities in the flow of water through the cylinders of the combined motor and supply-pump.

In the drawing annexed, representing a general view of the apparatus, A is the supplypump cylinder, having its piston propelled by a compound steam-engine provided with high and low pressure cylinders B 0, fed with steam by pipe D from any suitable source.

E is the suction-pipe for the pump A, connected with a tank, F, and G is the dischargepipe conducting the water under pressure to the reciprocating water-motor, which may be located at any point in relation to the pump A.

In the drawing the motor is shown located in a vertical mine-shaft employed in pumping water from a pit-a class of work for which the apparatus is peculiarly adapted, as its operation, when once connected, may be made strictly automatic, and is not interfered with by its submergence in water. The motor consists in a reciprocating piston propelled back and forth in a cylinder, a, by suitable valve mechanism of the kind generally used for thus G is shown connected to the valve-chest b of the cylinder at, and a pipe, H, connected to the side of said cylinder, conducts the same water back to the tank F, from whence it was drawn by the pump A. The operation of the cylinder at and its piston is therefore continuous so long as the pump A is in motion, and the motor a may be used to operate the drainpiston-rod with said pump'.

The pipe.

Application filed March 20, 1893. (No model.)

age-pump d by the direct connection of its The suction-pipe of pump cl is shown at f, and its discharge at g, the latter being shown continued to the surface of the ground at h to discharge the water from the mine. A couplingcock, e, is shown placed .between the pipes H and g, and a stop cock, '6, is inserted in the pipe g beyond the former, to prevent the passage of water up the pipe 9 when thecoupling-cock e is open. By

this construction the water elevated by the drainage-pump may be discharged into the tank with the propelling current of water or discharged upon the ground, if too dirty to admit into the propelling-cylinders.

In my former patent I devised arotary motor to avoid the liability of sticking at the end of the stroke, which is incident to'most reci y rocating motors,but consider that my invention of the intermediate tank affords inc special facilities for propellinga reciprocating motor, and have found that various duplex pumps are made to operate without any interruption by reason of their positive valve motions. I have therefore devised the arrangement shown herein, in which any reliable reciprocating pump can be used, as the 'motor at a.

I am aware that reciprocating transmitters of power have been designed before, in which certain elements of my invention are used apart from the others, as in United States Patents Nos. 55,289 and 251,593; but in no such invention is the tank employed by which I compensate for the diverse movements of the several pistons and for the leakage of water at any point in the apparatus.

In the UnitedlStates Patent 'No. 251,593 the fluid to pass from one cylinder into the other without the distributing-valves I employ in chest I), in consequence of which arrangement the two pistons move isochronously, and the loss of a little water in the connecting-pipes deranges the working of the apparatus.

By my combination of the overfiowrtank F with the two cylinders, a large reservoir of fluid is secured to maintain a constant connection between the pressure and the motor pistons, and the necessity of the passover-valves claimed in said Patent No. 251,593 is avoided. My arrangement also enables me to use compound engines for operating the pressurepump A, and thereby secure the utmost economy of power, as well as to use duplex motors at a, and thus secure the utmost certainty of action. The tank A must be supplied with water from some independent source at the outset, and water must be introduced into it to compensate for any leakage from the cylinders A and a. and their connecting-pipes, and I have therefore shown a supply-pipe at I, as well as an overflow-pipe at J in case the cylinders a and (Z are connected by cock 0 to discharge up the pipe H into the tank. The advantage of the latter plan is simply to save the double line of pipe at H and g in cases when the water can safely be mixed.

\Vith the construction described, the motor a and its combined pump (2 can be located at any point required and connected by pipes run in any direction, and any number of such 1 reciprocating motors can be operated at difi'erent points that the pump A is fitted to propel.

Having thus described the nature and operation of my invention, 1 claim the same as follows:

1. The combination of the direct-acting rcciprocating steam-pump A with the pipe E, tank F, and reciprocating pump consisting of the cylinders a and d, the motor-cylindera, being supplied with water by automatic valves contained in valve-chest b, and the pump A being connected with said valve-chest by a' WM. BAXTER.

\Vitnesses: V

Tnos. s. CRANE, Urns. Horkms. 

